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US3202939A Expired / Lapsed US ⏱️ 0.0 years remaining

Balanced transistor translating network

Assignee: AT&T Inc
•
Filing: 1961-12-29
•
Granted: 1965-08-24
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Expires: 1981-12-29
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Abstract

No abstract record available.

Inventors

  • 👤 Paul A Reiling

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-30 22:39
CPC Classifications
H; H03; H03F; H03F3/00; H03F3/26

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 181 words
APPARATUS FOR TRANSLATING A HIHG FREQUENCY SIGNAL WAVE FROM A SOURCE TO A LOAD WHICH COMPRISES A PAIR OF LIKE TRANSISTORS EACH HAVING AN INPUT ELECTRODE, AN OUTPUT ELECTRODE AND A COMMON ELECTORDE, SAID COMMON ELECTRODES BEING DIRECTLY CONNETED TOGETHER AND TO FIRST COMMON POINT, SAID OUTPUT ELECTRODES BEING CONNECTED TO A SECOND COMMON POINT, A PATH, INCLUDING A POTENTIAL SOURCE, EXTENDING FROM SAID FIRST COMMON POINT TO SAID SECOND COMMON POINT, A LOAD COUPLED TO SAID OUTPUT ELECTRODES, AN INPUT TRANSFORMER HAVING A PRIMARY WINDING SUPPLIED WITH SAID SIGNAL WAVE AND A SECONDARY WINDING OF WHICH THE END TERMINALS ARE CONNECTED TO SAID UNPUT ELECTRODES, RESPECTIVELY, FOR APPLYING SIGNAL VOLTAGES DEVELOPED FROM SAID WAVE TO SAID INPUT ELECTRODES IN PUSH-PULL, WHEREBY MINORITY CARRIERS ARE INJECTED INTO SAID TRANSISTORS IN ALTERNATION AND ON ALTERNATE HALF CYCLES OF SAID SIGNAL WAVE, THUS TO DRIVE THEM INTO THEIR WORKING STATES, EACH OF SAID TRANSISTIORS BEING SO PROPORTIONED THAT THE REVERSE-CURRENT DRAIN OF SAID MINORITY CARRIERS FROM ITS INPUT ELECTRODE IN ITS NONWORKING STATE ENDURES FOR AT LEAST ONE-HALF PERIOD OF SAID SIGNAL WAVE.
Claim 2
Dependent Claim 181 words
APPARATUS FOR TRANSLATING A HIHG FREQUENCY SIGNAL WAVE FROM A SOURCE TO A LOAD WHICH COMPRISES A PAIR OF LIKE TRANSISTORS EACH HAVING AN INPUT ELECTRODE, AN OUTPUT ELECTRODE AND A COMMON ELECTORDE, SAID COMMON ELECTRODES BEING DIRECTLY CONNETED TOGETHER AND TO FIRST COMMON POINT, SAID OUTPUT ELECTRODES BEING CONNECTED TO A SECOND COMMON POINT, A PATH, INCLUDING A POTENTIAL SOURCE, EXTENDING FROM SAID FIRST COMMON POINT TO SAID SECOND COMMON POINT, A LOAD COUPLED TO SAID OUTPUT ELECTRODES, AN INPUT TRANSFORMER HAVING A PRIMARY WINDING SUPPLIED WITH SAID SIGNAL WAVE AND A SECONDARY WINDING OF WHICH THE END TERMINALS ARE CONNECTED TO SAID UNPUT ELECTRODES, RESPECTIVELY, FOR APPLYING SIGNAL VOLTAGES DEVELOPED FROM SAID WAVE TO SAID INPUT ELECTRODES IN PUSH-PULL, WHEREBY MINORITY CARRIERS ARE INJECTED INTO SAID TRANSISTORS IN ALTERNATION AND ON ALTERNATE HALF CYCLES OF SAID SIGNAL WAVE, THUS TO DRIVE THEM INTO THEIR WORKING STATES, EACH OF SAID TRANSISTIORS BEING SO PROPORTIONED THAT THE REVERSE-CURRENT DRAIN OF SAID MINORITY CARRIERS FROM ITS INPUT ELECTRODE IN ITS NONWORKING STATE ENDURES FOR AT LEAST ONE-HALF PERIOD OF SAID SIGNAL WAVE.

References Cited (Backward Citations)

US2644925A Cited
US2788493A Cited
US2920189A Cited
US2990516A Cited
US2989628A Cited
US3056064A Cited
US2962674A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1968-08-23 1969-02-22 1969-08-24 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1972-08-23 1973-02-22 1973-08-24 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1976-08-23 1977-02-22 1977-08-24 $7700.00 Window Closed / Lapsed

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